You think this would be a good book for a non english native kid or is very 'english' specific? I can't find any good books in portuguese about teaching kids to

You think this would be a good book for a non english native kid or is very 'english' specific? I can't find any good books in portuguese about teaching kids to read that doesn't use the 'visual' method (since it is what is used in schools). I wouldn't mind translating the lessons myself to portuguese and present it to him of course, but if 50%+ is english specific (grammar rules, etc) than maybe not a good idea